Question about Brother MFC-9420CN All-In-One Laser Printer

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Mfc 9420Cn printing but marking black line on

My Mfc 9420Cn printing but marking black line on the right side i cant understand this problem plz help me .. i have checked al toners ...

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  • 215 Answers

Try making a copy off of glass. if black mark is gone, then you have to clean the narrow strip of glass to the left of big glass.

hth,
razors

Posted on Apr 15, 2009

  • Danman12 Jul 19, 2011

    I suddenly developed a black line all the way down the center of the page during the copy fucnction using the paper feeder. This troubleshooting technique worked perfectly as it turned out to be a mark on the narrow strip of glass to the left of the big glass. Thanks!

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1 Answer

If i have run out of cyan coloured toner, can i print only black somehow? the printer doesn't want to print at all (even on mono colour selection), and keeps asking to replace toner cartridge


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Blank lines on right side of paper on brother 9420 mfc


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hth,razors

Dec 18, 2008 | Brother MFC-9420CN All-In-One Laser...

1 Answer

Printer is not printing clear and nice pictures


Dear Cubohr,

You need to check the other colour toners, if the other toners are running low, than you will find that the black tone becomes more prominant in your prints. Alternately, there may be an environmental condition with your unit. If it is in direct sunlight, then it is possable that you are getting light interference on all your prints. There are also a number of other reasons.

Check your toners first, check if there is light interference, if both are ok, your unit may still be under brother warranty and you may need to get it to a brother service centre.

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i am vj_tech guy. plz download drivers n install them from the following site. select the operating system n start installing.

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I can't imagine where toner could possible go from one of these sort of cartridges except on to your paper, I had a customer once with the same request and I found on their letter head that they printed with it had a single band of yellow across it hence excess yellow use,,,,,, Do your print runs of anything contain dark bands/underlines? I guess check to see if white background in any prints has a blueish tinge to it, or possiblly somehow black is running out and it is printing the blacks by mixing the colours (Check black block and text to see if it is really black not heaps dark blue to ensure black toner is operating)

next I'd be questioning if cartridges where brother ones?

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1 Answer

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Sometimes when toner starts to get low prints will faed or not print on sides. Make sure the printer is on a very level surface. Remove the toners and shake lightly left to right and reinstall.

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